GB1250721A - - Google Patents
Info
- Publication number
- GB1250721A GB1250721A GB1250721DA GB1250721A GB 1250721 A GB1250721 A GB 1250721A GB 1250721D A GB1250721D A GB 1250721DA GB 1250721 A GB1250721 A GB 1250721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- jan
- fluid pressure
- operate
- switches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012530 fluid Substances 0.000 abstract 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/68—Mould opening, closing or clamping devices hydro-mechanical
- B29C45/683—Mould opening, closing or clamping devices hydro-mechanical using both a toggle mechanism as mould closing device and another mechanism as mould clamping device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/84—Safety devices
- B29C45/844—Preventing damage caused by obstructions or foreign matter caught between mould halves during mould closing, e.g. moulded parts or runners
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
1,250,721. Injection mould closing devices. K. AOKI. 15 Jan., 1969 [20 Jan., 1968; 24 Jan., 1968], No. 2283/69. Heading B5A. In an injection moulding machine comprising mould parts 10, 11, wherein initial closing of the mould is effected by fluid pressure means 2 through toggle arms 3, and final closing is effected by second fluid pressure means 4, detector means are provided to prevent final closure if any obstructing matter is present between the mould parts. Detector means may also be provided to detect obstructing matter between the mould part 11 and a sprue runner plate 9 which can be separated by fluid pressure cylinders 13. The detector means comprises switches 12<SP>11</SP> operated by push-rods 12<SP>1</SP>, the switches being arranged in a circuit so that if mould part 11 and plate 9 come together, then mechanism 2 can operate, and if this permits mould parts 10, 11 to be brought together then mechanism 4 can operate. If obstructions are present the switches do not close and a warning lamp and buzzer operate. Knock-out pins 22 on a plate 23 are operated by a ram (24), Fig. 2 (not shown).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP297768 | 1968-01-20 | ||
| JP417968 | 1968-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1250721A true GB1250721A (en) | 1971-10-20 |
Family
ID=26336466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1250721D Expired GB1250721A (en) | 1968-01-20 | 1969-01-15 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3564657A (en) |
| DE (2) | DE1902625A1 (en) |
| FR (1) | FR2000492B1 (en) |
| GB (1) | GB1250721A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736087A (en) * | 1969-12-23 | 1973-05-29 | Netstal Ag | Mold closing unit with separately acting rotary and fluid pressure piston drives |
| US3728057A (en) * | 1970-09-02 | 1973-04-17 | New Britain Machine Co | Plastic injection molding machine safety mechanism |
| US3712774A (en) * | 1970-10-14 | 1973-01-23 | Improved Machinery Inc | Molding machine having yieldably restrained clamping force applying element |
| US3825385A (en) * | 1972-03-22 | 1974-07-23 | G & S Mold & Die Inc | Self-contained die protecting device |
| US3769934A (en) * | 1973-01-26 | 1973-11-06 | Dow Chemical Co | Sample preparing apparatus |
| US4038003A (en) * | 1974-05-14 | 1977-07-26 | Sund-Akesson Aktiebolag | Injection molding machine |
| USRE33248E (en) * | 1985-04-01 | 1990-07-03 | Clamp mechanism | |
| US5147491A (en) * | 1986-01-31 | 1992-09-15 | Roberts Systems, Inc. | Form, fill and seal process and device |
| DE4219687C2 (en) * | 1992-06-16 | 1994-05-05 | Richard Herbst | Process for operating an injection molding machine with tool lock |
| US5814278A (en) * | 1996-04-26 | 1998-09-29 | Minnesota Mining And Manufacturing Company | Shrouded reaction vessel |
| KR100420741B1 (en) * | 1998-10-13 | 2004-03-02 | 세이코 엡슨 가부시키가이샤 | Micromachine and method of manufacturing the same |
-
1969
- 1969-01-15 GB GB1250721D patent/GB1250721A/en not_active Expired
- 1969-01-16 US US791737*A patent/US3564657A/en not_active Expired - Lifetime
- 1969-01-17 FR FR6900923A patent/FR2000492B1/fr not_active Expired
- 1969-01-20 DE DE19691902625 patent/DE1902625A1/en active Pending
- 1969-01-20 DE DE6902362U patent/DE6902362U/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE6902362U (en) | 1972-11-23 |
| US3564657A (en) | 1971-02-23 |
| FR2000492A1 (en) | 1969-09-05 |
| FR2000492B1 (en) | 1975-06-20 |
| DE1902625A1 (en) | 1972-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1250721A (en) | ||
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |